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CCSM Research Tools: June 23 2004 CAM 3.0 Model Release

Model Release

The Community Atmosphere Model version 3.0 (CAM 3.0) was released along with CCSM 3.0 on Wednesday, June 23, 2004. CAM 3.0 is the latest CCSM atmosphere model and is the first major update since CAM 2.0. This version of the model includes updates to both the science and software engineering of the model.

Highlights of the software improvements include:

Performance improvements for all three dynamical cores in the areas of:

load balancing

interprocess communication

physics and dynamics decompositions

compiler optimizations

memory requirements

vectorization

Inclusion of a single column model (SCAM).

New run-time controls for performance and science options.

Ability to output a contiguous subset of columns to the history tape instead of a full field.